Wilson, Henry Maitland Wilson, 1st Baron, 1881–1964, British field marshal. He served in the South African War and World War I and in 1939 became commander of the British forces in Egypt. He led the ill-fated British expedition in Greece in 1941 and served as commander in chief in the Middle East (1943–44) and as supreme Allied commander in the Mediterranean (1944–45). "Jumbo" Wilson was head of the British joint staff mission in Washington from 1945 to 1947. In 1946 he was created baron.